voip pstn
RSS voip pstnHierarchical Inter-CMS Architecture Using Standalone SIP Route Proxy
White Paper As they deploy regional Call Management Servers (CMSs), they also deploy costly interconnects with the PSTN for routing calls either to another CMS or to the PSTN. A hierarchical inter-CMS architecture using a standalone SIP route proxy enables... [03 Jul 2008]
Starting with VoIP
White Paper However, since most telephony today is supported on PSTN (Public Switched Telephone Network) based on circuit-switched architecture most VoIP based telephony uses a combination of the Internet and PSTN. [06 Jun 2008]
Acoustic Echo Cancellation in IP Phones
White Paper As voice over IP (VoIP) is emerging as a viable alternative to PSTN the performance of VoIP devices is expected to match that of traditional PSTN equipment. The goal was to evaluate the performance and quality of acoustic echo cancellation in... [10 Apr 2008]
TCS Provided the Client With a VoIP Framework to Develop a Cost-Effective Telephony Product
White Paper The client is in the business of providing telecom solutions based on the conventional PSTN network, by converging their networks and taking advantage of VoIP. To achieve the client's requirements, TCS provided the client with a VoIP framework... [10 Apr 2008]
Session Initiation Protocol (SIP) and MCIAdvantage
White Paper One is potential short-term savings by moving to end-to-end voice over IP and mixed IP-PSTN (Public Switched Telephone Network) and by moving PBX (Private Branch Exchange) voice to VoIP usage. This paper explores the new communication services... [10 Apr 2008]
Firm Helps Enterprises Run New IP-Based Solutions on Existing Telecom Networks
White Paper Dialogic has created a portfolio of media gateways that simplify the installation of Microsoft Office Communications Server 2007 and Microsoft Exchange Server 2007 alongside existing PBX systems and the Public Switched Telephone Networks (PSTN). [03 Apr 2008]
How Cisco IT in India Converged the VoIP and PSTN Infrastructure
White Paper Limited call-center status and IN Exchange helped make communication more convenient for some Cisco employees, but did not resolve the basic and most obvious issue created by the restriction on PSTN and VoIP interconnection. [04 Mar 2008]
Nortel Network Case Study: CLSA
White Paper Incompatibilities between systems made management onerous, while reliance on expensive Public Switched Telephony (PSTN) calling kept costs high and call quality variable. To ensure VoIP Quality of Service & Quality of Experience 24x7, CLSA relies... [10 Jan 2008]
Protocols for the VoIP and Converged Network
White Paper Comparing protocol flows for PSTN and VoIP calls This is the second of six technical briefing papers that examine the concepts, operation and analysis of converged networks. A call through a converged network involves a number of subsystems... [12 Dec 2007]
Ofcom: VoIP must allow emergency calls
News All VoIP providers who connect to the UK's public switched telephone network (PSTN) will have to modify or upgrade their systems to allow 999 and 112 calls to be made, the telecoms regulator has ruled. [07 Dec 2007]
VoIP Hacks: Link Two Asterisk Servers With PSTN
White Paper Asterisk can handle all of these steps automatically, routing the call to the other office's PSTN trunk, waiting until it's answered, and dialing the recipient's extension to complete the connection. One can build a two-office unified dial plan... [24 Oct 2007]
The Superclass Softswitch: What Service Providers Require From Day One to Deploy VoIP in Their Core Networks
White Paper In short, the softswitch can assist in reshaping the economics and revenue potential of the Public Switched Telephone Network (PSTN). The heart and soul of the next-generation network is the softswitch - the software-based switching center for... [15 Sep 2007]
The Packet Interconnect Opportunity for MSOs
White Paper Most cable operators are implementing Time Division Multiplexing (TDM) interconnections from their softswitches to the Public Switched Telephone Network (PSTN). Interconnection of the Multiple Service Operator (MSO) Voice over Internet Protocol... [15 Sep 2007]
Genesys Meeting Center VoIP White Paper
White Paper Its main application is to allow individuals to conduct voice conversations over an IP network instead of the existing Public Switched Telephone Network (PSTN). With its commitment to innovation, Genesys is expanding its service offerings to... [20 Aug 2007]
Continuing to Be Innovative; Avaya's VoIP Technology Supports the Global Growth of Defacto Call Center
White Paper The most important step of the modernisation was the gradual change from using classic PSTN landlines (in other words, the Public Switched Telephone Network) to adopting Voice over IP (VoIP), which uses data lines for telephony purposes. [18 Apr 2007]
